-80.88% is the change from 800 to 153
Calculation steps:
[( 153 - 800 ) ÷ 800] x 100 = -80.88%
Formula
Percentage change = [(153 - 800) / 800] x 100
Subtract the new number by the original number
153 - 800 = -647
-647 ÷ 800 = -0.80875
-0.80875 x 100 = -80.88%